CORBA组件作一种分布式组件对象模型，相对于传统的软件系统在软件测试方法上有其特殊的要求。
CORBA, as a distributed component model, has special requirement on the testing method, compared with the traditional software systems.
接着分析比较了三种主流的分布式对象模型的体系结构及其各自的缺点和长处，较为详细的介绍了EJB组件技术。
Secondly, the characteristic of three popular distributed object models are compared and the EJB is introduced particularly in the paper.
为了满足复杂的、大型的分布式应用开发的需求，作为基于组件对象模型的分布式技术规范，CORBA技术被广泛采用。
In order to meet the needs of the complicated and large-scale distributed application development, as the distributed technology standard of component model, CORBA technology is widely used.
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